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www.beast-tek.com

            Microbe Build Guide 

Page 2 

 

Microbe Main (CPU) Board BOM 

IC1 

MCP602/MCP6022 High precision op-amp 

  

IC2 

ATMEGA328P-PU 

  

IC3 

7805 5v 1A Voltage Regulator 

7805 

IC4 

79L05 -5v 0.1A Voltage Regulator 

79L05 

D1, D2 

IN4004 Power Diode 

IN4004 

T1, T2, T3 

2N3904 Transistor 

2N3904 

C2, C10 

100uf Electrolytic LOW ESR Capacitor 

100uf 

C3 

22uf Electrolytic LOW ESR Capacitor 

22uf 

C1, C4, C5, C6 , C7, C11  100nf Blue Monolithic Capacitor 

104 

C8, C9 

22pf Ceramic Capacitor 

22 

Q1 

20mhz Crystal 

  

R1 

100uH Inductor R.F. Choke 

  

R4 

1K Ohm Resistor 1% 

Brown-Black-Black-Brown-Brown 

R2, R6 ,R11, R12 

10K Ohm Resistor 1% 

Brown-Black-Black-Red-Brown 

R3, R7, R10,  R14, R16 

100K Ohm Resistor 1% 

Brown-Black-Black-Orange-Brown 

R13,R15,R17,R18 

200K Ohm Resistor 1% 

Red-Black-Black-Orange-Brown 

R5, R8, R9 

1M Ohm Resistor 1% 

Brown-Black-Black-Yellow-Brown 

JP1, JP2 

8 Way Pin Header Single Row FEMALE 

  

EXPAND 

4 Way pin header dual Row MALE 

  

ICSP 

ICSP - do not populate 

  

  

POWER 

Shrouded 10pin (2x5) IDC Header (Eurorack Power) 

  

 1 

  

  

  

  

 

Microbe IO Board BOM 

R5, R6, R7, R8, R9, R10, R11, R12 

1K Ohm Resistor 1% 

Brown-Brown-Black-Black-

Brown 

R13, R14, R15, R16, R17, R18, R19, R20, 

R21 

1K2 Ohm Resistor 1% 

  

C1, C2 

100nf Blue Monolithic Capacitor 

104 

IC1, IC2 

74HC595 

  

LED9 

10mm High Brightness White Led 

  

LED1-LED8 

3mm High Brightness White Led 

  

R1, R2, R4 

9mm Round shaft 10KB Potentiometer 

  

R3 

9mm T18  shaft 10KB Potentiometer 

  

JP1, JP2 

8 Way Pin Header Single Row MALE 

  

  

PJ301BM "Erthenvar" 3.5mm Mono 

Jack 

  

13 

 

 

 

Summary of Contents for MICROBE v1.2

Page 1: ...www beast tek com Microbe Build Guide Page 1 MICROBE v1 2 BUILD GUIDE www beast tek com ...

Page 2: ...ed Brown 4 R3 R7 R10 R14 R16 100K Ohm Resistor 1 Brown Black Black Orange Brown 5 R13 R15 R17 R18 200K Ohm Resistor 1 Red Black Black Orange Brown 4 R5 R8 R9 1M Ohm Resistor 1 Brown Black Black Yellow Brown 3 JP1 JP2 8 Way Pin Header Single Row FEMALE 2 EXPAND 4 Way pin header dual Row MALE 1 ICSP ICSP do not populate POWER Shrouded 10pin 2x5 IDC Header Eurorack Power 1 Microbe IO Board BOM R5 R6 ...

Page 3: ...www beast tek com Microbe Build Guide Page 3 1 Install and solder 10K resistors R2 R6 R11 and R12 2 Install and solder 100K resistors R3 R7 R10 R14 R16 ...

Page 4: ...www beast tek com Microbe Build Guide Page 4 3 Install and solder 200K resistors R13 R15 R17 R18 4 Install and solder 1M resistors R5 R8 and R9 ...

Page 5: ...www beast tek com Microbe Build Guide Page 5 5 Install and solder 1K resistor R4 6 Install and solder the inductor R1 ...

Page 6: ...beast tek com Microbe Build Guide Page 6 7 Install and solder power diodes and IC sockets cut sockets from machine pin strips using a sharp craft knife or side cutters 8 Install and solder 20 mhz crystal Q1 ...

Page 7: ...www beast tek com Microbe Build Guide Page 7 9 Install and solder 100nf capacitors C1 C4 C5 C6 C7 C11 10 Cut 2 x 4 pins from the male pin header strip and solder into the expand header ...

Page 8: ...www beast tek com Microbe Build Guide Page 8 11 Install and solder 22pf capacitors C8 C9 12 Install and solder 10 pin IDC header Eurorack power ...

Page 9: ...e Build Guide Page 9 13 Install and solder IC4 79L05 and the 3 x 2n3904 transistors IMPORTANT make sure you sort the 79L05 from the transistors before installation and soldering 14 Install and solder IC2 7805 voltage regulator ...

Page 10: ...m Microbe Build Guide Page 10 15 Install and solder 100uf capacitors C2 and C10 16 Install and solder 22uf capacitor C3 Cut 2 x 8 pin sections from the MALE header pin strip and solder in place on reverse side of board ...

Page 11: ...ek com Microbe Build Guide Page 11 17 Insert the ATMEGA328p and the MCP602 be careful to make sure they are installed in the correct direction 18 Install and solder the 1K resistors R5 R6 R7 R8 R9 R10 R11 and R12 ...

Page 12: ... Resistors R19 R20 and R21 are positioned extremely close to some of the jacks To prevent short circuit from these resistors to the metal body of the jacks make sure you solder R19 R20 and R21 from the TOP of the board so the entire leg can be clipped off on the bottom 20 Install and solder the IC sockets cut from machine pin strips ...

Page 13: ...www beast tek com Microbe Build Guide Page 13 21 Install the two 100nf capacitors C1 and C2 Cut two 8 pin strips from the FEMALE header pin strip and solder into place ...

Page 14: ... Guide Page 14 22 Install the potentiometers being careful to place the T18 knurled shaft to the correct location IMPORTANT DO NOT SOLDER THE POTS they will sit happily in place for now 23 Install the thirteen jacks DO NOT SOLDER YET ...

Page 15: ...LLY flip together then solder ONLY THE GROUND PIN of the jacks to hold them in place DO NOT solder the other jack pins AND DO NOT solder and of the pots YET 25 Once one pin of the jacks has been soldered they will stay in place Remove the clear acrylic panel and install two of the 6mm M3 screws and attach the 11mm brass stand offs on the other side Install the two remaining IC s ...

Page 16: ...ce over the jacks and pots and wiggle things into place so the panel sits nicely DON T put any nuts on the jacks or pots yet First push the big 10mm LED via its leads through the panel Next work through the eight 3mm leds pushing them through one by one so they are flush with the panel If you put any nuts on the jacks or pots you will need to remove them so that the LEDs can be pushed through the ...

Page 17: ...e jacks giving each one a wiggle as tightening up so that they all sit flush Give everything a final wiggle and make sure everything is seated well The panel and sockets are still reasonable flexible until everything is soldered in Once you are happy that everything is seated correctly and flush flip the panel over and solder all of the remaining jack pins and the pots and LEDs into place 29 Take ...

Page 18: ...www beast tek com Microbe Build Guide Page 18 30 Double check and make sure everything is correct and looks right Once you are happy its time to power on and test ...

Page 19: ...www beast tek com Microbe Build Guide Page 19 ...

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